Blondes may have more fun but redheads have more sex, reported to new research in Germany. The study by metropolis Sex Researcher Professor Dr Werner Habermehl looked at the sex lives of hundreds of west germanic women and compared them with their hair colour. He said: "The sex lives of women with red hair were clear more active than those with other pilus colour, with more than partners and having sex more than often-times than the average.